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BOSTON MARATHON 2023

Jeffrey Marks

Bib: 19688•M

OH

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M65-69)
#0 / 549
Top 27%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:29/mi
26:22
↑ 97↓ 3451.5%
10K· 6.21 mi
8:16/mi
52:04
↑ 79↓ 1380.4%
15K· 9.32 mi
8:22/mi
1:18:04
↑ 67↓ 78
20K· 12.43 mi
8:28/mi
1:44:21
↑ 106↓ 860.1%
Half· 13.11 mi
8:27/mi
1:50:07
↑ 19↓ 370.5%
25K· 15.53 mi
8:38/mi
2:11:03
↑ 66↓ 880.2%
30K· 18.64 mi
9:03/mi
2:39:10
↑ 181↓ 1480.2%
20M
9:20/mi
2:51:51
↑ 64↓ 500.2%
21M
9:40/mi
3:01:31
↑ 106↓ 241.6%
35K· 21.75 mi
9:07/mi
3:08:20
↑ 17↓ 861.7%
23M
9:20/mi
3:20:01
↑ 23↓ 630.6%
24M
9:15/mi
3:29:16
↓ 821.3%
40K· 24.85 mi
9:35/mi
3:37:28
↓ 200.3%
25.2M
10:12/mi
3:40:59
↑ 13↓ 160.2%
Finish· 26.22 mi
10:13/mi
3:51:24
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:50:07
Pace8:24 /mi
2nd Half
Distance13.11 mi
Time2:01:17
Pace9:15 /mi
📊Positive Split: 10.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:1226:228:2926:22
8:29
-
10K
6.21 mi11:43:5452:048:2325:42
8:16
-0:13
15K
9.32 mi12:09:541:18:048:2326:00
8:22
+0:06
20K
12.43 mi12:36:111:44:218:2426:17
8:28
+0:06
Half
13.11 mi12:41:571:50:078:245:46
8:27
-0:01
25K
15.53 mi13:02:532:11:038:2620:56
8:38
+0:11
30K
18.64 mi13:31:002:39:108:3228:07
9:03
+0:25
20M
20.00 mi13:43:412:51:518:3612:41
9:20
+0:17
21M
21.00 mi13:53:213:01:318:399:40
9:40
+0:20
35K
21.75 mi14:00:103:08:208:406:49
9:07
-0:33
23M
23.00 mi14:11:513:20:018:4211:41
9:20
+0:13
24M
24.00 mi14:21:063:29:168:439:15
9:15
-0:05
40K
24.85 mi14:29:183:37:288:458:12
9:35
+0:20
25.2M
25.20 mi14:32:493:40:598:463:31
10:12
+0:37
Finish
26.22 mi14:43:143:51:248:5010:25
10:13
+0:01

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

8:16 /mi

Average Pace

8:50 /mi

Slowest Pace

10:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:11:03

57% of race

Time at Steady Pace

1:08:33

30% of race

Time at Slower Pace

31:48

14% of race

Average Pace: 8:50 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:18:1226:228:2926:22
8:29
#17467
10K
6.21 mi11:43:5452:048:2325:42
8:16
#17051
15K
9.32 mi12:09:541:18:048:2326:00
8:22
#17041
20K
12.43 mi12:36:111:44:218:2426:17
8:28
#16914
Half
13.11 mi12:41:571:50:078:245:46
8:27
#16948
25K
15.53 mi13:02:532:11:038:2620:56
8:38
#16958
30K
18.64 mi13:31:002:39:108:3228:07
9:03
#16990
20M
20.00 mi13:43:412:51:518:3612:41
9:20
#17076
21M
21.00 mi13:53:213:01:318:399:40
9:40
#17055
35K
21.75 mi14:00:103:08:208:406:49
9:07
#17116
23M
23.00 mi14:11:513:20:018:4211:41
9:20
#17144
24M
24.00 mi14:21:063:29:168:439:15
9:15
#17217
40K
24.85 mi14:29:183:37:288:458:12
9:35
#17290
25.2M
25.20 mi14:32:493:40:598:463:31
10:12
#17309
Finish
26.22 mi14:43:143:51:248:5010:25
10:13
#17650
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM65-69Seg. OverallSeg. MalesSeg. M65-69
5K3.11 mi3.11 mi17467112161121616960(Top 64%)11056(Top 73%)11056(Top 2014%)
10K6.21 mi3.10 mi17051+41611085+13111085+13116731(Top 63%)11006(Top 73%)11006(Top 2005%)
15K9.32 mi3.11 mi17041+1011091-611091-616960(Top 64%)11056(Top 73%)11056(Top 2014%)
20K12.43 mi3.11 mi16914+12711020+7111020+7116598(Top 62%)10873(Top 72%)10873(Top 1981%)
Half13.11 mi0.68 mi16948-3411031-1111031-1117426(Top 65%)11260(Top 74%)11260(Top 2051%)
25K15.53 mi2.42 mi16958-1011017+1411017+1416999(Top 64%)10974(Top 72%)10974(Top 1999%)
30K18.64 mi3.11 mi16990-3211013+411013+417428(Top 65%)11092(Top 73%)11092(Top 2020%)
20M20.00 mi1.36 mi17076-8611040-2711040-2718141(Top 68%)11299(Top 74%)11299(Top 2058%)
21M21.00 mi1.00 mi17055+2111010+3011010+3016699(Top 63%)10669(Top 70%)10669(Top 1943%)
35K21.75 mi0.75 mi17116-6111031-2111031-2118357(Top 69%)11303(Top 74%)11303(Top 2059%)
23M23.00 mi1.25 mi17144-2811024+711024+717653(Top 66%)10969(Top 72%)10969(Top 1998%)
24M24.00 mi1.00 mi17217-7311036-1211036-1218239(Top 69%)11190(Top 74%)11190(Top 2038%)
40K24.85 mi0.85 mi17290-7311045-911045-918626(Top 70%)11316(Top 75%)11316(Top 2061%)
25.2M25.20 mi0.35 mi17309-1911049-411049-418079(Top 68%)11062(Top 73%)11062(Top 2015%)
Finish26.22 mi1.02 mi17650-34111184-13511184-13522341(Top 84%)13019(Top 86%)13019(Top 2371%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 64%
×21story building
+97ft-345ft

Overall

16960

Males

11056

M65-69

11056

5K→10K

3.1 - 6.2 mi

Top 63%
×5story building
+79ft-138ft

Overall

16731

Males

11006

M65-69

11006

10K→15K

6.2 - 9.3 mi

Top 64%
×3story building
+67ft-78ft

Overall

16960

Males

11056

M65-69

11056

15K→20K

9.3 - 12.4 mi

Top 62%
×5story building
+106ft-86ft

Overall

16598

Males

10873

M65-69

10873

20K→Half

12.4 - 13.1 mi

Top 65%
×2story building
+19ft-37ft

Overall

17426

Males

11260

M65-69

11260

Half→25K

13.1 - 15.5 mi

Top 64%
×4story building
+66ft-88ft

Overall

16999

Males

10974

M65-69

10974

25K→30K

15.5 - 18.6 mi

Top 65%
×9story building
+181ft-148ft

Overall

17428

Males

11092

M65-69

11092

30K→20M

18.6 - 20.0 mi

Top 68%
×5story building
+64ft-50ft

Overall

18141

Males

11299

M65-69

11299

20M→21M

20.0 - 21.0 mi

Top 63%
×8story building
+106ft-24ft

Overall

16699

Males

10669

M65-69

10669

21M→35K

21.0 - 21.8 mi

Top 69%
×7story building
+17ft-86ft

Overall

18357

Males

11303

M65-69

11303

35K→23M

21.8 - 23.0 mi

Top 66%
×5story building
+23ft-63ft

Overall

17653

Males

10969

M65-69

10969

23M→24M

23.0 - 24.0 mi

Top 69%
×6story building
+12ft-82ft

Overall

18239

Males

11190

M65-69

11190

24M→40K

24.0 - 24.9 mi

Top 70%
×1story
+6ft-20ft

Overall

18626

Males

11316

M65-69

11316

40K→25.2M

24.9 - 25.2 mi

Top 68%
×1story
+13ft-16ft

Overall

18079

Males

11062

M65-69

11062

25.2M→Finish

25.2 - 26.2 mi

Top 84%
×2story building
+22ft-21ft

Overall

22341

Males

13019

M65-69

13019

Passing Analysis

Category:
Athletes Passed
1676
Passed By
1859
Net Change
-183
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17467
5K → 10K579163+416#17467#17051
10K → 15K201191+10#17051#17041
15K → 20K239112+127#17041#16914
20K → Half1650-34#16914#16948
Half → 25K114124-10#16948#16958
25K → 30K168200-32#16958#16990
30K → 20M47133-86#16990#17076
20M → 21M9473+21#17076#17055
21M → 35K2788-61#17055#17116
35K → 23M78106-28#17116#17144
23M → 24M39112-73#17144#17217
24M → 40K48121-73#17217#17290
40K → 25.2M2039-19#17290#17309
25.2M → Finish6347-341#17309#17650
TOTALS16761859-183
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing